This aims to provide an intraocular lens insertion tool (10). An introductory part (80) in an insertion cylinder (66) is provided, at a widthwise central portion of a bottom surface (84), with a central protrusion (90) which extends in an axial direction of a tool body (12) and protrudes toward an upper surface (86) to get in contact with a center portion of a rear surface of an optical zone (24) of an intraocular lens (16). The upper surface (86) is provided, at its both widthwise ends, with a pair of lateral protrusions (92), which extend in the axial direction of the tool body (12) and protrude toward the bottom surface (84) to get in contact with both ends of a front surface of the optical zone (22) of the intraocular lens (16) A lens pressing face (112) of a plunging member (14) is formed with a dimension spanning from the bottom surface (84) to the upper surface (86) at a tip end section (78) of the insertion cylinder (66).
